Pengembangan Pocket Book Digital Berbasis Project Based Learning Menggunakan GeoGebra untuk Meningkatkan Pemahaman Konsep Matematis Siswa SMP

Abstract

This research was conducted with the aim of developing a digital pocket book based on project based learning using valid, practical and effective geogebra used to improve understanding of mathematical concepts for junior high school students. The background of this research is because of the low level of understanding of the concepts that students have in mathematics, especially abstract material. The type of this research is research and development (R&D) using the ADDIE design which has five stages, starting from analysis, design, development, implementation, and evaluation. The instruments used include: interview guidelines, material expert assessment questionnaires, media expert assessment questionnaires, learning practitioner questionnaires, student response questionnaires and pre-test post-test questions. This research was conducted at MTs Persis 55 Serang City with the research subjects of class VIII students. II numbered 29 people. The results of trials conducted by experts were categorized as very valid with a percentage of 80% by media experts and 82% by material experts. Meanwhile, the practicality test got a percentage of 85% in the very practical category and the effectiveness test got a percentage of 56.75% in the quite effective category. Based on these results, the product developed can be said to be valid, practical, and effective for use in teaching and learning activities.